How to make a basic bath bomb


So you want to try your hand at bath bomb making?

Look no further than our easy start up guide!


Orange Y6 Dye Ryan Etere Photo
Picture kindly submitted from Ryan Etere over at the Portside Soap Company

Learning to Make Bath Bombs can seem like a daunting experience, therefore we have added our take on things.

Just like baking a cake, each person will have their own methods, tricks they swear by and tools/equipment they prefer.

To make a Bath Bomb for personal use, it is pretty straightforward!
If you want to sell any form of cosmetic which does include a bath bomb then it does need the relevant safety assessment (another post, for another day).

Below is a basic yet effective recipe we believe is a good starting point!

Equipment:
-Large Mixing Bowl
-Weighing Scales
-Sieve
-Disposable Gloves
-Spray Bottle with Water
-Mould (Silicone is difficult to use, hard plastic or metal works best)

Ingredients
-600g Bicarbonate of Soda
-300g Citric Acid

Optional Ingredients
-*See Below

Method
-Weigh out the Bicarbonate of Soda, and sift into a bowl.
-Add Citric Acid, and mix in well.
-Slowly add sprays of water, a spray at a time mixing well in between. You are aiming for a consistency where the mixture just about holds together when you squeeze it.
-Fill up your mould, pressing the mixture into any details, and loosely filling the rest.
-Unmould immediately and leave to dry.

* The recipe above is a very simple foundation recipe. We suggest using it as a starting point, so you can get used to what a mixture should feel like. There are many many different combinations of ingredients you can use which each have different properties. Each additional ingredient will effect the outcome, but also the feel of your mixture, and how it behaves. The reason we suggest starting with such a basic recipe is because if you start out with a recipe with 10 ingredients, and one of those ingredients is causing you difficulties, then you will struggle to pinpoint which one it is.

Fun Optional Ingredients and what they do:

Water Soluble dyes– These will colour the bath bomb, and also the water in the bath tub, however these are incredibly potent, and the smallest amount goes a long way! To use a water soluble dye, initially we suggest mixing a teeny amount into a small pot of water (less than a teaspoon of water, and a knife tip of dye). Mix into your dry ingredients well before adding your citric acid.

-SLSa– This will add foam to your bathtub, and will also slow down the reaction time of your bath bomb, making it fizz slower therefore lasting for a longer time. Try adding around 5g into your batch and simply mix the SLSa in with your dry ingredients.

-Kaolin Clay– This is a skin loving clay, which softens your water, and also your skin. A good starting point is to use around 5g. Simply mix into your bath bomb mixture with your other ingredients.

-Apricot Kernel Oil, or Sweet Almond Oil– You can use any skin safe, light carrier oil, however we do like these. They will help nourish the skin, try around 5g of oil to start with and see how you go. Be mindful that adding oil to a bath bomb can make the tub extra slippery.

Polysorbate 80– This can help emulsify any oils you may use, and reduce the slipperiness of the bath. Suggested use = half of your oil content. e.g 5g Polysorbate 80, to 10g Apricot Kernel Oil.

For our full range of fun moulds take a look here

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